Promising long-lasting definition that delivers up to 15 hours of wear, the Estée Lauder Double Wear Zero-Smudge Lengthening Mascara elongates and separates the eyelashes for a high-impact finish. The formula is created with day-to-night use in mind. Blended with innovative polymers, the mascara stays locked in place without flaking, and resists humidity, high temperatures and perspiration. Its Lash-Xtender™ Brush grabs each eyelash and coats them in a glossy, jet-black colour to create a dramatic look. Ophthalmologist tested.